Pump swab



May 2?, 1923.

J. PENROD ET AL Filed March 21, 1922 May 22, 1923.

J. PENROD ET AL PUMP SWAB Filed March 21, 1922 2 Sheets-Sheet 2 Fete-acted may JOHN rnnaon nn ROBERT :D. THOMPSON, or OKMULGEE, OKL OMA,

PUMP SWAB.

Application filed March 21, 1922.

T 0 all whom it may concern:

Be it known that we, JOHN PENROD and ROBERT D. THOMPSON, citizens of the United States, residing at Okmulgee, in the county of Okmulgee, State of Oklahoma, have invented a new and useful Pump Swab, of which the following is a specification.

This invention relates to oil well apparatus and more particularly to the construction of the working barrel and elements associated therewith.

An object of the invention is to provide means for insuring the working barrel being positioned within the outer casing, in true alignment therewith, to provide a sand pocket with the casing.

A still further object of the invention is to provide means for directing sand from the upper portion of the device to the sand pocket. I

With the foregoing and, other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings Figure 1 is a vertical sectional view through an apparatus constructed in accordance with the present invention.

Figure 2 is a sectional view taken on line 2-2 of Figure 1.

Figure 3 is an enlarged sectional View through the apparatus disclosing the plunger and sand trap associated therewith.

Figure 4 is a fragmental elevational view disclosing the resilient means for securing the sections of the swab.

Referring to the drawings in detail, the outer casing of the apparatus is indicated at 5, and is formed with threaded portions 6 adapted to accommodate the heads 7, by

which it may be connected to the well tubing. The head 7 at the lower end of the casing 5 is threaded as at 8, to accommodate the threaded portion of the inserted working barrel 9, in which the plunger to be hereinafter more fully described, operates to force liquid through the apparatus.

Positioned at the lower end of the working barrel 9, is the standing valve 10 which Serial No. 545,444.

controls the fluid from the pipe 11 to the working barrel, it being understood that the are angularly disposed openings 15 designed to direct material downward to a point remote from the contactmg surfaces of the plunger and working barrel.

The reference character 16 designates laterally extending arms which are of lengths to contact with the inner surface of the casing 5, the arms being formed on the head 14 atopposite sides thereof, so that when the head is secured to the working barrel 9 and assembled into the pump casing, the arms contacting with the inner surface of the casing 5, will hold the working barrel in alignment with theouter casing and insure perfect alinement for the plunger, so

that the lower portion of the plunger will reciprocate in the barrel while the upper portion will reciprocate in the tubing and through the head 7, without the outer walls of the plunger coming in contact with the inner walls of the tubing.

The head 14 is relatively thick as compared with the working barrel 9 and provides a shoulder to be engaged by the fingers 17 carried by the sand trap 18, it being understood that the sand trap 18 is formed in sections which are held together by means of bolts 18. Spring members 19 are mounted on the bolts and normally hold the sand scraper in close engagement with the 14,-to engage the shoulder formed at the lower end thereof.

These fingers 17 are carried by the respective sections of the adjustable sand trap so that when the resilient means employed for connecting the sections of the sand trap is put under tension, the fingers and the sections move with respect to each other, and cause the inner surface of the adjustable sand trap to grip the outer wall of the plunger.

Formed at the upper end of the adjustable sand trapor scraper 18, are openings 19 which are disposed at" angles with respect to the vertical, and have their upper ends communicatingwith the upper inner surface of the adjustable sand trap 18 which is inclined as at 20, whereby any sand or foreign material, which settles back and collects on the outer wall of the plunger, will be scraped ofl the plunger, by the inner wall of the adjustable sand trap as the plunger moves on its downward stroke all settling'sand and foreign matter will pass through opening 19 and be deposited in the sand pocket 24.

When it becomes necessary to repair valves or replace the cups 25 on the lower valve of plunger, it is only necessary to move the rods upward out of the working barrel 9,

" through the adjustable sand trap 18 and on until the plunger again reaches theworking throughvthe we'll tubing to the top of the well. It will be understood that as soon as theplunger and valve pass out of the adjustable sand trap 18 the respective sections of the adjustable sand trap will be brought together by the resilient means employed there, and the fingers 17 will grip the head Hand remain in perfect alignmentwith the head? and the tubing connection 22. When the valvesare repaired and the cups replaced, .the plunger again may be lowered through the tubing in any suitable'manner,

barrel, whereby the valve carried on the plunger will come in contact with the upwardly inclined wall 20 on the adjustable sand trap 18, and as the plunger is lowered it-willforce the respective sections of the adjustable sand strap outward until the opening'through sand trap 18 is large enough to let the valve and theplunger pass through 'and'enter into, the Working barrel 9, and is again ready to be put into opera- I be deposited in the sand pocket 24:.

Having thus described the invention what is claimed as new is 1. Ina device 'of'the character'described,

. a casing, a head at each end'of the casing,'a

Working'barrel within the casing and dis posed in spaced relation therewith to provide a sand pocket, a head secured to the upper end of the working barrel, an adjustable sand trap having means adapted to cooperate with the head to secure the same in position, said adjustable sand trap having an inclined upper edge adapted to trap sand,

said'wall having openings to direct material from the sand trap to the sand pocket.

' 2. In a device of the class described, a casing, a working barrel within the casing, a plunger operating in the working barrel, a sand swab comprising sections mounted for movement towards and away from each.

other, a finger formed at the lower end of each section, and extending inwardly, and means on the working barrel and adapted to cooperate with the inwardly extended portions of the fingers to prevent movement of the swab longitudinally of the working barrel. 7

3. In a device of the class described, a

casing, a working barrel within the casing, a plunger-operatingin the working-barrel, a sand swab including sections mounted for 'movement towards and away from each other, means for holding the sections intov close engagement with. the plunger, securlng means for securing the swab to the working barrel, and said securing'means adapted to move laterally with respect tot-he working barrel. i

4:. In a device of the class described, "a casing, a working barrelwithin the casing, a plunger operating in the working barrel,

a head positioned on the'working barrel and presenting a shoulder, a swab comprising sections mounted for movement towards and ried by the sections and adapted to engage under the shoulder, and said securing means adapted to move laterally with respect to the shoulder.

away from each other, securing means car- 5. In a device of the class described, a

casing, a working barr'el'l within the casing, a plunger operating in the working barrel, a head earned by the working barrel and presenting a shoulder, a sand swab comprising sections, mounted for movement towards" and away from each other, each ofsaidseo,

tions'having'an inwardly extending finger Y formed at the lower end thereof, said fingers adapted to move under the shoulder, and

said fingers adaptedto move towards and away from each other, to permit'the swab to be positioned on the working barrel. I

JOHN PENROD. ROBERT-D. THOMPSON. 

